After surgery for visually significant cataract, patients with ocular hypertension or glaucoma may have a reduction in IOP.
In the Ocular Hypertension Treatment Study (see Chapter 7), 42 patients underwent cataract surgery while enrolled in the control arm of the study. These patients were compared to patients in the control arm who did not undergo cataract surgery. At 36 months, the average IOP reduction in patients who had cataract surgery was 16.5%. Moreover, 40% of eyes that underwent cataract surgery had a ≥20% reduction in IOP at 36 months. Conversely, the mean IOP in eyes that did not undergo cataract surgery was unchanged at 36 months.
Mansberger SL, Gordon MO, Jampel H, et al; Ocular Hypertension Treatment Study Group. Reduction in intraocular pressure after cataract extraction: the Ocular Hypertension Treatment Study. Ophthalmology. 2012;119(9):1826–1831.
Excerpted from BCSC 2020-2021 series: Section 10 - Glaucoma. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.